Which of the following statements about electrocyclic ring closure is not true?
A)It is an intramolecular reaction.
B)It requires heat or light.
C)The cyclic product contains one more s bond and one fewer p bond than the reactants.
D)The cyclic product contains one more p bond and one fewer s bond than the reactants.

Question

Quizplus · Accepted Answer

Electrocyclic ring closure involves the breaking and forming of sigma and pi bonds. The cyclic product contains one more sigma bond and one fewer pi bond than the reactants, so statement D is false.

Which of the Following Statements About Electrocyclic Ring Closure Is